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Getting Could not instrument class xxxxxx_$$_javassist_0: Class versions V1_5 or less must use F_NEW frames.. after upgrading from 4.5.0 to 4.6.1

See original GitHub issue

Even though the project launches successfully, I’m getting a bunch of these warnings for my model classes.

Could not instrument class xxxx_$$_javassist_334: Class versions V1_5 or less must use F_NEW frames..

All I did was to upgrade STS4 from 4.5.0 to 4.6.1. So far, I’ve been reading about javaassist, m2e and other possible solutions but I really haven’t made any progress. Please could someone explain to me, what exactly that error/warning means and how to avoid it, apart from switching back to the older version of STS. If you need more info about the installation please ask me. Thank you!

Issue Analytics

State:
Created 3 years ago
Comments:19 (11 by maintainers)

Top GitHub Comments

1reaction

martinlippertcommented, May 7, 2020

Looks like the discussion/question is cross-posted on SO here: https://stackoverflow.com/questions/61649995/to-instrument-a-class-what-exactly-does-it-mean-which-software-is-responsible - we should work on one of those questions, not both in parallel

0reactions

martinlippertcommented, Jul 10, 2020

More details on this can be found here: https://bugs.eclipse.org/bugs/show_bug.cgi?id=506149

Hope this helps! Further questions and investigations into this should probably go into comments to the mentioned bug at Eclipse or a new one over there.

Therefore closing this one here.